S Oh Bee !!! What's up lover?
The bag into bag glitch you refer to was a 2x trick. The "bags" specifically were 1 back pack of holding and 1 pants of holding. BP into pants, BP out, pants into BP, pants out, repeat. Gave neg weight allowed you to carry 172 hours+ of single combat cloud worth of PvP supplies for that epic battle that may or may not happen when standing around in jumpers corner killing fields.
This glitch was also part of the double turn PvP exploit. In PvP on your turn before your time ran out you would drop your dagger of power and put on a low level weak stiletto on off a few times reequip dop then take your turn. Stiletto had a agility bonus and with the stack weight doing this with this specific dagger would quite frequently result in a double turn (agility bonus would stack. Lag? Dial up days who knows but effect was brief would go away if you didn't swap away a few times each turn).
Was awesome initially but as more and more learned you'd see more and more swap as well to counter. Then it became a game of who's getting that double round first or at a rng point in time.................
Unless you were a wog spam mage. Wog bug ultimate cheese. 2+ (better with 4) everyone quickly keeps ramming wog even when not your turn to get your click in asap.... And your team just keeps casting and the other team literally never makes a move until your wog furry of super broken code kills everyone and you win and claim it's skill . Won't name names of a few I remember engaged in said wog shenanigans because I'm pretty sure I've seen a few of their posts round here. You know who you all are
1 group in particular... Cough GUS cough